//
//  NSNull+Extension.h
//  QNReuseTool
//
//  Created by rsh on 2019/10/15.
//  Copyright © 2019年 rsh. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSNull (Extension)

@property (readonly) double doubleValue;

@property (readonly) float floatValue;

@property (readonly) int intValue;

@property (readonly) NSInteger integerValue;

@property (readonly) long long longLongValue;

@property (readonly) BOOL boolValue;

@property (readonly) NSInteger length;

-(BOOL)isEqualToString:(NSString *)aString;

@end
